RPS Fixed Beam
Robotic Couch for Fixed-Beam Particle Therapy and BNCT

The RPS Fixed Beam delivers robotic 6DoF motion control for gantry-less proton, carbon, other I and BNCT therapy systems. It ensures submillimeter positioning for seated or supine setups and maintains consistent isocenter geometry without rotating the beamline. Designed for compact, cost-efficient radiotherapy centers, it combines precision, flexibility, and seamless integration into advanced treatment workflows.

200 kg

Patient weight

6 DOF

Isocentric movement

+/-5°

Angle correction

Patient Setups

Seated and hybrid

Why Fixed-Beam Proton Therapy Requires Advanced Motion Control

Precise alignment is critical in fixed-beam Ion / BNCT therapy. Even minimal deviations in patient positioning can shift the beam path and compromise dose accuracy. The following points show why advanced motion control is essential for consistent, high-quality treatment delivery.

Limited Flexibility in Beam Delivery

Traditional fixed setups restrict beam direction and require complex repositioning. The RPS Fixed Beam enables automated 6DoF correction to maintain alignment with the target isocenter.

High Construction Costs

Rotating gantries increase cost and size of treatment bunkers. A fixed-beam setup with robotic positioning reduces building volume and shielding requirements.

Complex Isocenter Alignment

Without 6DoF control, even small misalignments affect dose accuracy. The RPS Fixed Beam maintains beam geometry with submillimeter correction.

Variable Patient Positions

Seated or supine treatments require adaptable motion control. The RPS Fixed Beam supports varrious angles, ensuring reproducibility and patient comfort.

Advantages and Benefits

The RPS Fixed Beam brings robotic motion control to compact radiotherapy centers. It maintains submillimeter precision and enables adaptive workflows without rotating gantries.

How You Benefit

Future-ready innovation

Expand your treatment spectrum with a robotic couch designed for next-gen protocols - supporting supine, seated, and adaptive workflows for radiotherapy centers.

Seamless integration

Open interface architecture allows compatibility with all major immobilization systems and fixation platforms - offering flexibility without compromising precision or reproducibility.

Optimized for proton and BNCT fixed-beam treatments

Ensure consistent isocentric alignment and reproducible patient positioning for proton therapy, minimizing setup time and maximizing treatment quality.

Lower costs through fixed-beam compatibility

Innovative integration with inclined and horizontal setups opens a new path to cost-optimized radiotherapy through fixed-beam compatibility.








    Get in Touch
    Bring Flexibility to fixed-beamTherapy systems

    Contact us to learn how to integrate the RPS Fixed Beam into your fixed-beam radiotherapy system for cost-efficient, submillimeter positioning.

    • Enables cost-efficient gantry-less radiotherapy setups
    • Robotic 6-DoF couch for precise, repeatable patient positioning
    • 30+ years of expertise in medical motion systems

    Seamless Integration
    into Fixed-Beam Therapy Workflows

    The RPS Fixed Beam integrates seamlessly into modern fixed-beam and gantry-less proton, heavy-Ion and BNCT therapy environments. Compatible with all major immobilization systems and carbon baseplates from Orfit, CQ Medical, 3C, IT-V, and Macromedics, it connects directly with existing treatment platforms without requiring structural or software modification. Its rigid, low-profile design ensures mechanical stability and straightforward daily operation.

    Fully MDR-compliant and ISO 13485 certified, the RPS Fixed Beam supports image-guided, adaptive, and seated treatment workflows with submillimeter reproducibility. It enables real-time correction and stable beam geometry across all patient positions, making it the ideal platform for clinics and OEMs seeking to expand proton and ion therapy precision through fixed-beam integration.

    Our Applications
    for Advanced Radiotherapy

    Stable patient alignment defines accuracy in fixed-beam proton and carbon ion therapy. The RPS Fixed Beam maintains consistent geometry without the need for a rotating gantry, reducing infrastructure cost and setup complexity.

    • 6DoF positioning for inclined or supine treatment positions
    • Optimized for gantry-less proton and BNCT workflows
    • Precise beam targeting with lateral and angular correction

    Proton radiotherapy

    Surface guided radiotherapy

    Penumbra in radiotherapy

    Brain radiotherapy

    Seated patient

    Stereotactic radiotherapy

    Learn more about our projects

    Discover how gKteso’s positioning solutions are applied in advanced radiotherapy systems worldwide. From prototype integration to clinical implementation, our projects demonstrate precision engineering in real treatment environments. Learn how we collaborate with OEM partners to shape the next generation of radiotherapy technology.

    Learn more about …

    Real-time 6DoF positioning for LINAC RT workflows.

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    Patient Positioning Systems

    by gKteso: Tailored for modern radiotherapy environments.

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    Seamless surface scanner integration and live motion correction during treatment.

    Schedule an appointment now!

    Frequently Asked Questions

    How does the RPS Fixed Beam support proton therapy and BNCT?

    The RPS Fixed Beam ensures precise, reproducible patient alignment in fixed-beam proton therapy using 6DoF motion control. It maintains a stable isocenter geometry without a gantry, enabling accurate dose delivery and cost-efficient treatment setups.

    By eliminating the gantry, the RPS Fixed Beam allows for gantry-less bunker designs that dramatically lower construction and shielding costs. This makes it an ideal solution for compact, modular, or mobile treatment units, helping clinics and OEMs reduce total cost of ownership while maintaining precision.

    Yes. The RPS Fixed Beam is engineered for supine, inclined or hybrid patient setups, enabling various radiotherapy workflows. This opens new clinical and research possibilities, particularly for compact proton and BNCT systems or for patients benefiting from inclined positioning.

    Absolutely. Thanks to its open interface architecture, the RPS Fixed Beam integrates seamlessly with all major immobilization platforms – including thermoplastic masks, vacuum cushions, and custom fixation devices – without compromising positioning precision or workflow efficiency.

    The system is modular, adaptive, and designed for emerging radiotherapy protocols such as stereotactic, adaptive, and image-guided therapies (IGRT). Its compatibility with both proton and BNCT systems, combined with 6DoF motion control, ensures long-term viability as treatment standards and technologies evolve.

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